Twist tops

Abstract

In another aspect the invention is a (drink bottle or container) closure assembly as a unit having an occlusion region providing first component, the first component being adapted for a closing engagement with a complementary bottle or container, and having a liquid passageway to be open from the bottle or container to an outlet below at least part of the occlusion region, as a second component, a spout or top with a dispensing outlet capable of being occluded by the occlusion region to provide a substantially liquid tight-environment from an engaged liquid bearing bottle or container unless the second component rises from its dispensing outlet occluding condition, and a third component, rotation of which controls the rise and fall of the second component relative to the occlusion region.

1. A dispensing closure assembly suitable to be engaged to a complementary container, said assembly comprising
 a first moulded component adapted to engage an outlet of a complementary container and to provide a single inlet of said first moulded component above said container through a flat plate of a sealing ring for sealing a top of the container from which any liquid content of said container can only egress, the first moulded component including a closure portion above an outlet, 
 a second moulded component about part of said first moulded component and having a dispensing outlet capable of being closed by the closure portion of said first moulded component, the first and second moulded components having coacting features below the outlet of the first moulded component to restrict relative movement between the first and second moulded components at least substantially to a rectilinear vertical or at least substantially non rotational movement of one relative the other, 
 a third moulded component held captive by said first moulded component but rotatable relative thereto, and being threadedly associated with the second moulded component so that rotation of the third moulded component causes by a vertical straight lowering of the second moulded component relative to the first moulded component, and vice versa, closing, and opening respectively, of the outlet of the second moulded component, 
 limits provided by abutment between features of the first and third moulded components to restrict an amount of rotation of the third moulded component relative to the first moulded component. 
 
     
     
       2. An assembly of  claim 1 , wherein the first moulded component defines an internally threaded region adapted to engage a complementary thread of the complementary container. 
     
     
       3. An assembly of  claim 2 , wherein said internally threaded region is integral with a region defining a passageway and/or closure portion. 
     
     
       4. An assembly of  claim 2 , wherein the second moulded component has an external thread or thread followers to complement an internal thread or thread follower of said third moulded component. 
     
     
       5. A dispensing closure assembly suitable to be engaged to a complementary container, said assembly comprising
 a first component or assembly adapted to engage an outlet of a complementary container and to provide a single inlet of the first component located above the container through a flat plate of a sealing ring for sealing a top of the container from which any liquid content of the container can only egress, the first component including a closure portion, 
 a second component or assembly about part of said first component and having a dispensing outlet of the second component capable of being closed by the closure portion of said first component, the first and second components having coacting features below the outlet of the first component to restrict relative movement of the first and second components to a lowering of the second component and a rising of the second component to effect closure and opening, respectively, of the dispensing outlet of the second component, 
 a third component or assembly held captive by said first component but rotatable relative thereto, and being interengaged with the second component so that rotation of the third component causes the closing and the opening of the dispensing outlet of the second component by the closure portion of the first component.